CN1132175C - 获得或访问不同块携带信息的复制保护光记录载体的方法 - Google Patents

获得或访问不同块携带信息的复制保护光记录载体的方法 Download PDF

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Publication number
CN1132175C
CN1132175C CN98118835A CN98118835A CN1132175C CN 1132175 C CN1132175 C CN 1132175C CN 98118835 A CN98118835 A CN 98118835A CN 98118835 A CN98118835 A CN 98118835A CN 1132175 C CN1132175 C CN 1132175C
Authority
CN
China
Prior art keywords
copy protection
subcode
record carrier
data
protection key
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN98118835A
Other languages
English (en)
Chinese (zh)
Other versions
CN1219728A (zh
Inventor
R·布劳克维施
A·温特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony DADC Europe Limited Austria Branch
Original Assignee
Sony DADC Austria AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony DADC Austria AG filed Critical Sony DADC Austria AG
Publication of CN1219728A publication Critical patent/CN1219728A/zh
Application granted granted Critical
Publication of CN1132175C publication Critical patent/CN1132175C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00094Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
    • G11B20/00123Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers the record carrier being identified by recognising some of its unique characteristics, e.g. a unique defect pattern serving as a physical signature of the record carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00391Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in subcodes, e.g. in the Q subcode of a CD
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00615Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the logical format of the recording medium, e.g. the structure of sectors, blocks, or frames
    • G11B20/0063Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the logical format of the recording medium, e.g. the structure of sectors, blocks, or frames wherein the modification to the logical format mainly concerns management data, e.g., by changing the format of the TOC or the subcode
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0071Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a purchase action
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Manufacturing Optical Record Carriers (AREA)
CN98118835A 1997-08-28 1998-08-27 获得或访问不同块携带信息的复制保护光记录载体的方法 Expired - Fee Related CN1132175C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97114927A EP0899733B1 (en) 1997-08-28 1997-08-28 Optical disc copy management system
EP97114927.3 1997-08-28

Publications (2)

Publication Number Publication Date
CN1219728A CN1219728A (zh) 1999-06-16
CN1132175C true CN1132175C (zh) 2003-12-24

Family

ID=8227283

Family Applications (1)

Application Number Title Priority Date Filing Date
CN98118835A Expired - Fee Related CN1132175C (zh) 1997-08-28 1998-08-27 获得或访问不同块携带信息的复制保护光记录载体的方法

Country Status (14)

Country Link
US (1) US6535858B1 (ru)
EP (1) EP0899733B1 (ru)
JP (1) JPH11250512A (ru)
KR (1) KR100583906B1 (ru)
CN (1) CN1132175C (ru)
AT (1) ATE199990T1 (ru)
AU (1) AU750499B2 (ru)
BR (1) BR9806518B1 (ru)
CA (1) CA2245232C (ru)
DE (1) DE69704352T2 (ru)
ES (1) ES2155230T3 (ru)
RU (1) RU2229172C2 (ru)
SG (1) SG71803A1 (ru)
TW (1) TW374900B (ru)

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Also Published As

Publication number Publication date
KR19990023961A (ko) 1999-03-25
DE69704352D1 (de) 2001-04-26
ATE199990T1 (de) 2001-04-15
CN1219728A (zh) 1999-06-16
KR100583906B1 (ko) 2006-09-06
BR9806518A (pt) 2001-03-13
JPH11250512A (ja) 1999-09-17
DE69704352T2 (de) 2001-07-12
BR9806518B1 (pt) 2011-01-11
AU8194998A (en) 1999-03-11
EP0899733B1 (en) 2001-03-21
AU750499B2 (en) 2002-07-18
CA2245232C (en) 2007-01-23
US6535858B1 (en) 2003-03-18
ES2155230T3 (es) 2001-05-01
SG71803A1 (en) 2000-04-18
CA2245232A1 (en) 1999-02-28
TW374900B (en) 1999-11-21
EP0899733A1 (en) 1999-03-03
RU2229172C2 (ru) 2004-05-20

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